Slack not thy # 06_JOS_10_06 # And the men of Gibeon sent unto Joshua to the camp to Gilgal, saying, Slack not thy hand from thy servants; come up to us quickly, and save us, and help us: for all the kings of the Amorites that dwell in the mountains are gathered together against us. 
slack not thy # 12_2KI_04_24 # Then she saddled an ass, and said to her servant, Drive, and go forward; slack not [thy] riding for me, except I bid thee.